{"id":5937,"date":"2026-01-20T09:00:00","date_gmt":"2026-01-20T00:00:00","guid":{"rendered":"https:\/\/www.ramxeed.com\/zh-tw\/?post_type=column&p=5937"},"modified":"2026-01-19T10:53:38","modified_gmt":"2026-01-19T01:53:38","slug":"psram-guide-for-design-engineers","status":"publish","type":"column","link":"https:\/\/www.ramxeed.com\/zh-tw\/tech-column\/psram-guide-for-design-engineers\/","title":{"rendered":"\u507dSRAM\uff08PSRAM\uff09\u662f\u4ec0\u9ebc\uff1f\u5f9e\u7279\u6027\u3001\u61c9\u7528\u5230 FeRAM \u66ff\u4ee3\u53ef\u80fd\u6027\u7684\u5b8c\u6574\u89e3\u6790"},"content":{"rendered":"\n

\u672c\u6587\u5c07\u91dd\u5c0d \u507d SRAM\uff08Pseudo SRAM\uff0cPSRAM\uff09<\/strong> \u7684\u904b\u4f5c\u6a5f\u5236\u8207\u6280\u8853\u7279\u6027\u9032\u884c\u8aaa\u660e\uff0c\u4e26\u6bd4\u8f03\u5176\u8207 SRAM<\/strong> \u7684\u5dee\u7570\uff0c\u5f9e\u5be6\u969b\u61c9\u7528\u5834\u666f\u3001\u8a2d\u8a08\u6642\u7684\u6ce8\u610f\u4e8b\u9805\uff0c\u4e00\u76f4\u5230 FeRAM \u662f\u5426\u53ef\u4f5c\u70ba PSRAM \u7684\u66ff\u4ee3\u65b9\u6848<\/strong>\uff0c\u4ee5\u8a2d\u8a08\u5de5\u7a0b\u5e2b\u7684\u8996\u89d2\u9032\u884c\u6df1\u5165\u4e14\u6613\u61c2\u7684\u89e3\u6790\u3002<\/p>\n\n\n\n

\u507dSRAM \u7684\u57fa\u790e\u6982\u5ff5\u8207\u6280\u8853\u6982\u8981<\/strong><\/h2>\n\n\n\n

\u4ec0\u9ebc\u662f PSRAM\uff1f\u2014 DRAM Cell \u7d50\u5408 SRAM \u4ecb\u9762<\/strong><\/h3>\n\n\n\n

\u507d SRAM\uff08Pseudo SRAM\uff0cPSRAM\uff09<\/strong> \u662f\u4e00\u7a2e\u5728\u5167\u90e8\u63a1\u7528 DRAM Cell<\/strong>\uff0c\u4f46\u5728\u5916\u90e8\u4ecb\u9762\u8207\u5b58\u53d6\u65b9\u5f0f\u4e0a\uff0c\u8a2d\u8a08\u6210\u8207 SRAM \u5e7e\u4e4e\u76f8\u540c<\/strong>\u7684\u63ee\u767c\u6027\u8a18\u61b6\u9ad4\u3002<\/p>\n\n\n\n

\u8207 SRAM \u76f8\u6bd4\uff0cPSRAM \u6bcf\u500b Cell \u6240\u9700\u7684\u96fb\u6676\u9ad4\u6578\u91cf\u8f03\u5c11\uff0c\u56e0\u6b64\u5728 \u6210\u672c\u8207\u6676\u7247\u9762\u7a4d\u6548\u7387<\/strong> \u4e0a\u66f4\u5177\u512a\u52e2\u3002\u540c\u6642\uff0cPSRAM \u5167\u90e8\u6574\u5408\u4e86 \u81ea\u52d5 Refresh \u96fb\u8def<\/strong>\uff0c\u4f7f\u8a2d\u8a08\u8005\u5728\u4f7f\u7528\u4e0a\u53ef\u50cf SRAM \u4e00\u6a23\u76f4\u63a5\u5b58\u53d6\uff0c\u800c\u7121\u9700\u984d\u5916\u8655\u7406 Refresh \u63a7\u5236\u3002<\/p>\n\n\n\n

\u9019\u6a23\u7684\u67b6\u69cb\u7279\u5225\u9069\u5408\u61c9\u7528\u65bc MCU \u8207 SoC \u8a2d\u8a08<\/strong>\u4e2d\uff0c\u80fd\u5728\u7dad\u6301\u4e00\u5b9a\u9ad8\u901f\u5b58\u53d6\u80fd\u529b\u7684\u540c\u6642\uff0c\u517c\u9867\u4f4e\u6210\u672c\u8207\u8f03\u9ad8\u7684\u8a18\u61b6\u9ad4\u5bc6\u5ea6\u3002
\u96d6\u7136\u5176\u5b58\u53d6\u901f\u5ea6\u7565\u905c\u65bc\u771f\u6b63\u7684 SRAM\uff0c\u4f46\u4ecd\u660e\u986f\u5feb\u65bc\u4e00\u822c DRAM\uff0c\u56e0\u6b64\u5e38\u88ab\u7528\u65bc \u5feb\u53d6\u7528\u9014\u6216\u66ab\u5b58\u8cc7\u6599\u5340<\/strong>\u3002<\/p>\n\n\n\n

1T-SRAM\uff0fPSRAM \u7684 Cell \u7d50\u69cb\u8207 Refresh \u96b1\u853d\u6280\u8853<\/strong><\/h3>\n\n\n\n

1T-SRAM<\/strong> \u662f\u507d SRAM \u7684\u4e00\u7a2e\u5be6\u4f5c\u5f62\u5f0f\uff0c\u96d6\u7136\u5167\u90e8\u4f7f\u7528 1 \u500b\u96fb\u6676\u9ad4\uff0b\u96fb\u5bb9\uff08DRAM \u7d50\u69cb\uff09<\/strong>\uff0c\u4f46\u900f\u904e\u5c08\u7528\u7684 Cell \u7ba1\u7406\u96fb\u8def\u8207 Refresh \u96b1\u853d\uff08Refresh Hiding\uff09\u908f\u8f2f<\/strong>\uff0c\u5728\u5916\u90e8\u884c\u70ba\u4e0a\u53ef\u5b8c\u5168\u6a21\u64ec SRAM\u3002<\/p>\n\n\n\n

\u4e00\u822c DRAM \u5728 Refresh \u671f\u9593\u6703\u9650\u5236\u5b58\u53d6\uff0c\u4f46 1T-SRAM \u6703\u5728\u80cc\u666f\u81ea\u52d5\u57f7\u884c Refresh<\/strong>\uff0c\u4f7f\u7cfb\u7d71\u5e7e\u4e4e\u611f\u53d7\u4e0d\u5230\u5ef6\u9072\u3002
\u6b64\u6a5f\u5236\u7531\u5c08\u7528\u63a7\u5236\u5668\u96fb\u8def\u8ca0\u8cac\uff0c\u4e0d\u6703\u5c0d CPU \u6216\u4e3b\u7cfb\u7d71\u589e\u52a0\u984d\u5916\u8edf\u9ad4\u8ca0\u64d4<\/strong>\u3002<\/p>\n\n\n\n

\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f PSRAM \u80fd\u5728 \u4f4e\u529f\u8017\u3001\u9ad8\u6574\u5408\u5ea6<\/strong> \u7684\u524d\u63d0\u4e0b\uff0c\u63d0\u4f9b\u63a5\u8fd1 SRAM \u7684\u4f7f\u7528\u9ad4\u9a57\uff0c\u56e0\u6b64\u5728 \u884c\u52d5\u88dd\u7f6e\u3001\u904a\u6232\u6a5f\u7b49\u540c\u6642\u8981\u6c42\u6548\u80fd\u8207\u7701\u96fb\u7684\u7522\u54c1<\/strong>\u4e2d\uff0c\u5df2\u6709\u5be6\u969b\u63a1\u7528\u6848\u4f8b\u3002<\/p>\n\n\n\n

PSRAM \u8207 SRAM \u7684\u5dee\u7570\u3001\u512a\u9ede\u8207\u7f3a\u9ede<\/strong><\/h3>\n\n\n\n

\u96d6\u7136 PSRAM \u8207 SRAM<\/strong> \u5728\u4ecb\u9762\u5c64\u7d1a\u5177\u6709\u9ad8\u5ea6\u76f8\u5bb9\u6027\uff0c\u4f46\u5176 \u5167\u90e8\u7d50\u69cb\u5b58\u5728\u660e\u986f\u5dee\u7570<\/strong>\u3002<\/p>\n\n\n\n

    \n
  • SRAM<\/strong>
    <\/strong> \u63a1\u7528 6T\uff086 \u500b\u96fb\u6676\u9ad4\uff09\u7d50\u69cb<\/strong>\uff0c\u53ef\u5728 Cell \u5c64\u7d1a\u76f4\u63a5\u4fdd\u5b58\u8cc7\u6599\uff0c\u5177\u5099\u9ad8\u901f\u4e14\u4e0d\u9700\u8981 Refresh \u7684\u7279\u6027\u3002<\/li>\n\n\n\n
  • PSRAM\uff08\u507d SRAM\uff09<\/strong>
    <\/strong> \u900f\u904e\u5728 DRAM Cell \u4e2d\u52a0\u5165 Refresh \u96fb\u8def\u8207\u63a7\u5236\u908f\u8f2f\uff0c\u4ee5\u964d\u4f4e\u6210\u672c\u8207\u6676\u7247\u9762\u7a4d\u3002<\/li>\n<\/ul>\n\n\n\n

    PSRAM \u7684\u4e3b\u8981\u512a\u9ede\u5305\u62ec\uff1a<\/strong><\/h3>\n\n\n\n
      \n
    1. \u53ef\u5be6\u73fe \u9ad8\u6574\u5408\u5bc6\u5ea6<\/strong><\/li>\n\n\n\n
    2. \u529f\u8017\u8f03\u4f4e<\/strong><\/li>\n\n\n\n
    3. \u4f7f\u7528\u65b9\u5f0f\u63a5\u8fd1 SRAM\uff0c\u8a2d\u8a08\u53cb\u5584<\/li>\n<\/ol>\n\n\n\n

      \u76f8\u5c0d\u7684\u7f3a\u9ede\u5247\u5305\u62ec\uff1a<\/strong><\/h3>\n\n\n\n
        \n
      1. Refresh \u53ef\u80fd\u5c0e\u81f4 \u6975\u5c0f\u7684\u5ef6\u9072<\/strong><\/li>\n\n\n\n
      2. \u5b58\u53d6\u901f\u5ea6 \u7565\u4f4e\u65bc\u771f\u6b63\u7684 SRAM<\/strong><\/li>\n\n\n\n
      3. \u9577\u6642\u9593\u5f85\u6a5f\u6642\uff0c\u4ecd\u5b58\u5728\u8cc7\u6599\u63ee\u767c\u98a8\u96aa<\/li>\n<\/ol>\n\n\n\n

        \u56e0\u6b64\uff0c\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u4f9d\u7528\u9014\u6b63\u78ba\u9078\u64c7 PSRAM \u6216 SRAM<\/strong> \u662f\u8a2d\u8a08\u5de5\u7a0b\u5e2b\u7684\u91cd\u8981\u8ab2\u984c\u3002<\/p>\n\n\n\n

        \u61c9\u7528\u5834\u666f\u8207\u5be6\u969b\u63a1\u7528\u6848\u4f8b<\/strong><\/h2>\n\n\n\n

        SoC\uff0f\u5d4c\u5165\u5f0f\u7cfb\u7d71\u4e2d\u7684 PSRAM \u61c9\u7528\u6848\u4f8b<\/strong><\/h3>\n\n\n\n

        \u507d SRAM\uff08PSRAM\uff09<\/strong> \u5e38\u88ab\u61c9\u7528\u65bc \u884c\u52d5\u88dd\u7f6e\u8207\u5d4c\u5165\u5f0f MCU<\/strong> \u4e2d\uff0c\u4f5c\u70ba\u5feb\u53d6\u8a18\u61b6\u9ad4\u6216\u5927\u5bb9\u91cf\u8cc7\u6599\u7684\u66ab\u5b58\u7a7a\u9593\u3002<\/p>\n\n\n\n

        \u5728\u6574\u5408 Wi-Fi\u3001Bluetooth<\/strong> \u7b49\u901a\u8a0a\u529f\u80fd\u7684\u8655\u7406\u5668\u4e2d\uff0c\u900f\u904e\u5916\u63a5 PSRAM\uff0c\u53ef\u5728\u4e0d\u5927\u5e45\u589e\u52a0\u6210\u672c\u7684\u60c5\u6cc1\u4e0b\uff0c\u9748\u6d3b\u64f4\u5145\u8a18\u61b6\u9ad4\u5bb9\u91cf\u3002
        \u9019\u5c0d\u65bc \u9ad8\u89e3\u6790\u5f71\u50cf\u8655\u7406\u3001\u97f3\u8a0a\u8655\u7406<\/strong> \u7b49\u9ad8\u8a18\u61b6\u9ad4\u8ca0\u8f09\u61c9\u7528\u5c24\u5176\u91cd\u8981\u3002<\/p>\n\n\n\n

        \u7531\u65bc PSRAM \u5167\u5efa Refresh \u63a7\u5236\uff0c\u4e0d\u9700\u8981\u8edf\u9ad4\u5c64\u7d1a\u7684 Refresh \u7ba1\u7406<\/strong>\uff0c\u80fd\u6709\u6548\u7c21\u5316\u7cfb\u7d71\u8a2d\u8a08\uff0c\u9019\u4e5f\u662f\u5176\u88ab\u5ee3\u6cdb\u63a1\u7528\u7684\u539f\u56e0\u4e4b\u4e00\u3002<\/p>\n\n\n\n

        \u5404\u7522\u696d\u7684 PSRAM \u7522\u54c1\u61c9\u7528\uff08HYPERRAM \u985e\u578b\u8207\u901a\u7528 PSRAM\uff09<\/strong><\/h3>\n\n\n\n

        PSRAM \u4f9d\u7167\u4e0d\u540c\u61c9\u7528\u9700\u6c42\uff0c\u767c\u5c55\u51fa\u591a\u7a2e\u7522\u54c1\u985e\u578b\u8207\u4ecb\u9762\u8a2d\u8a08\u3002
        \u4f8b\u5982\uff0c\u90e8\u5206 PSRAM \u63a1\u7528 \u4f4e Pin \u6578\u7684\u5e8f\u5217\u4ecb\u9762<\/strong>\uff0c\u6709\u52a9\u65bc\u7e2e\u5c0f PCB \u9762\u7a4d\uff0c\u9069\u5408\u7a7a\u9593\u53d7\u9650\u7684\u88dd\u7f6e\u3002<\/p>\n\n\n\n

        \u53e6\u4e00\u65b9\u9762\uff0c\u91dd\u5c0d\u9ad8\u901f\u8cc7\u6599\u50b3\u8f38\u9700\u6c42\uff0c\u4ea6\u6709 \u5e73\u884c\u532f\u6d41\u6392\u6216\u64f4\u5145\u532f\u6d41\u6392\u578b PSRAM<\/strong>\uff0c\u88ab\u61c9\u7528\u65bc\u5373\u6642\u8655\u7406\u6216\u5f71\u50cf\u8f38\u51fa\u7b49\u5834\u666f\u3002<\/p>\n\n\n\n

        \u9019\u4e9b PSRAM \u7522\u54c1\u591a\u5177\u5099 \u4f4e\u96fb\u58d3\u904b\u4f5c\u8207\u5f85\u6a5f\u7701\u96fb\u6a21\u5f0f<\/strong>\uff0c\u8207\u5c0d\u7701\u96fb\u8981\u6c42\u56b4\u683c\u7684\u7d42\u7aef\u8a2d\u5099\u5177\u6709\u9ad8\u5ea6\u76f8\u5bb9\u6027\u3002<\/p>\n\n\n\n

        \u6b77\u53f2\u6027\u7684\u958b\u767c\u77e5\u898b\uff08\u65e9\u671f PSRAM \u7684\u6280\u8853\u6f14\u9032\uff09<\/strong><\/h3>\n\n\n\n

        \u507d SRAM \u7684\u6838\u5fc3\u6982\u5ff5\u65e9\u5728 1980 \u5e74\u4ee3<\/strong> \u5373\u5df2\u958b\u59cb\u7814\u7a76\u3002
        \u7576\u6642\u7684\u8a2d\u8a08\u76ee\u6a19\uff0c\u662f\u5728\u63a1\u7528 DRAM Cell \u7684\u540c\u6642\uff0c\u5be6\u73fe \u7121\u9700\u5916\u90e8\u63a7\u5236\u7684\u81ea\u5f8b\u5f0f Refresh \u96fb\u8def<\/strong>\uff0c\u4ee5\u53d6\u4ee3\u9ad8\u6210\u672c\u7684 SRAM\u3002<\/p>\n\n\n\n

        \u9019\u4e9b\u65e9\u671f\u6280\u8853\u88ab\u61c9\u7528\u65bc\u5c0f\u578b\u96fb\u8166\u8207\u63a7\u5236\u88dd\u7f6e\u4e2d\uff0c\u4e26\u5c0d\u4eca\u65e5 PSRAM \u7684 Cell \u7d50\u69cb\u8207\u904b\u4f5c\u6a21\u5f0f\u8a2d\u8a08<\/strong> \u7522\u751f\u6df1\u9060\u5f71\u97ff\u3002<\/p>\n\n\n\n

        \u5373\u4f7f\u5728\u4eca\u65e5\uff0c\u5916\u90e8\u975e\u4f9d\u8cf4\u578b Refresh \u63a7\u5236<\/strong> \u8207 \u7dad\u6301\u9ad8\u901f\u5b58\u53d6\u884c\u70ba<\/strong>\uff0c\u4ecd\u662f PSRAM \u6280\u8853\u8a2d\u8a08\u7684\u6838\u5fc3\u601d\u60f3\u3002<\/p>\n\n\n\n

        \u8a2d\u8a08\u5de5\u7a0b\u5e2b\u5fc5\u9808\u638c\u63e1\u7684\u8a2d\u8a08\u8003\u91cf\u91cd\u9ede<\/strong><\/h2>\n\n\n\n

        \u5b58\u53d6\u901f\u5ea6\u3001\u529f\u8017\u8207\u6574\u9ad4\u8017\u96fb\u8868\u73fe\u7684\u8a55\u4f30\u8207\u53d6\u6368<\/strong><\/h3>\n\n\n\n

        \u5728\u5c07 \u507d SRAM\uff08PSRAM\uff09<\/strong> \u5c0e\u5165\u7cfb\u7d71\u8a2d\u8a08\u6642\uff0c\u9700\u8981\u540c\u6642\u8a55\u4f30 \u5b58\u53d6\u901f\u5ea6\u3001\u5de5\u4f5c\u96fb\u6d41\u4ee5\u53ca\u5f85\u6a5f\u529f\u8017<\/strong> \u7b49\u591a\u9805\u6027\u80fd\u6307\u6a19\u4e4b\u9593\u7684\u53d6\u6368\u95dc\u4fc2\u3002<\/p>\n\n\n\n

        \u4e00\u822c\u800c\u8a00\uff0cPSRAM \u7684\u5b58\u53d6\u5ef6\u9072 \u7565\u9ad8\u65bc\u771f\u6b63\u7684 SRAM<\/strong>\uff0c\u4f46\u7531\u65bc\u5176 Cell \u7d50\u69cb\u8f03\u70ba\u7c21\u5316\uff0c\u56e0\u6b64\u5728 \u5f85\u6a5f\u72c0\u614b\u4e0b\u7684\u529f\u8017<\/strong> \u4ee5\u53ca \u904b\u4f5c\u6642\u7684\u5e73\u5747\u96fb\u6d41<\/strong> \u5f80\u5f80\u80fd\u6709\u6548\u964d\u4f4e\u3002
        \u5728\u5f37\u8abf\u4f4e\u529f\u8017\u904b\u4f5c\u7684\u61c9\u7528\u5834\u666f\u4e2d\uff0c\u9019\u9805\u7279\u6027\u5177\u6709\u660e\u986f\u512a\u52e2\uff1b\u7136\u800c\uff0c\u82e5\u7cfb\u7d71\u5c0d\u6975\u9ad8\u901f\u5b58\u53d6\u6709\u56b4\u683c\u8981\u6c42\uff0c\u5247\u9700\u5be9\u614e\u8a55\u4f30 PSRAM \u8207\u61c9\u7528\u9700\u6c42\u7684\u5339\u914d\u7a0b\u5ea6\u3002<\/p>\n\n\n\n

        \u6b64\u5916\uff0cRefresh \u52d5\u4f5c\u671f\u9593\u53ef\u80fd\u7522\u751f\u7684\u77ed\u66ab\u5ef6\u9072\u6216\u6642\u5e8f\u6296\u52d5<\/strong>\uff0c\u4ea6\u61c9\u7d0d\u5165\u6574\u9ad4\u6548\u80fd\u8a55\u4f30\u7bc4\u570d\u3002<\/p>\n\n\n\n

        \u8173\u4f4d\u6578\u91cf\u3001\u4ecb\u9762\u9650\u5236\u8207\u5be6\u969b\u8a2d\u8a08\u6642\u7684\u6ce8\u610f\u4e8b\u9805<\/strong><\/h3>\n\n\n\n

        PSRAM \u7684 \u4ecb\u9762\u985e\u578b<\/strong>\uff0c\u6703\u5c0d\u8173\u4f4d\u6578\u91cf\u8207\u96fb\u8def\u677f\u4f48\u7dda\u8a2d\u8a08\u7522\u751f\u986f\u8457\u5f71\u97ff\u3002
        \u4f8b\u5982\uff0c\u5e73\u884c\u4ecb\u9762\u578b PSRAM<\/strong> \u9700\u8981\u7368\u7acb\u914d\u7f6e\u4f4d\u5740\u532f\u6d41\u6392\u8207\u8cc7\u6599\u532f\u6d41\u6392\uff0c\u56e0\u6b64\u8173\u4f4d\u6578\u8f03\u591a\uff0cPCB \u8a2d\u8a08\u8ca0\u64d4\u4e5f\u76f8\u5c0d\u63d0\u9ad8\u3002<\/p>\n\n\n\n

        \u76f8\u5c0d\u5730\uff0c\u5e8f\u5217\u4ecb\u9762\u6216\u7279\u6b8a\u540c\u6b65\u532f\u6d41\u6392\u578b PSRAM<\/strong>\uff0c\u53ef\u5927\u5e45\u6e1b\u5c11\u8173\u4f4d\u6578\u91cf\uff0c\u63d0\u5347\u96fb\u8def\u677f\u7a7a\u9593\u5229\u7528\u7387\u8207\u4f48\u7dda\u81ea\u7531\u5ea6\u3002
        \u4e0d\u904e\uff0c\u5e8f\u5217\u578b\u7522\u54c1\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u53d7\u5230 \u8cc7\u6599\u50b3\u8f38\u901f\u5ea6\u4e0a\u9650<\/strong> \u7684\u9650\u5236\uff0c\u56e0\u6b64\u5fc5\u9808\u5728 \u50b3\u8f38\u6548\u80fd\u8207\u96fb\u8def\u898f\u6a21<\/strong> \u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n\n\n\n

        \u540c\u6642\uff0c\u6642\u5e8f\u88d5\u91cf\uff08Timing Margin\uff09\u8207\u96fb\u6e90\u96dc\u8a0a\u8010\u53d7\u6027<\/strong> \u4e5f\u61c9\u5728\u8a2d\u8a08\u521d\u671f\u9032\u884c\u5145\u5206\u9a57\u8b49\uff0c\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u3002<\/p>\n\n\n\n

        \u6210\u672c\u8207\u6574\u5408\u5bc6\u5ea6\u6bd4\u8f03\uff1aSRAM\u3001DRAM \u8207 PSRAM \u7684\u5dee\u7570<\/strong><\/h3>\n\n\n\n

        \u5728\u8a18\u61b6\u9ad4\u9078\u578b\u6642\uff0c\u6210\u672c\u8207\u6574\u5408\u5bc6\u5ea6<\/strong> \u662f\u4e0d\u53ef\u5ffd\u8996\u7684\u91cd\u8981\u8a55\u4f30\u8ef8\u3002<\/p>\n\n\n\n

          \n
        • SRAM<\/strong>
          <\/strong> \u63a1\u7528 6T\uff08\u516d\u96fb\u6676\u9ad4\uff09\u7d50\u69cb<\/strong>\uff0c\u5177\u5099\u9ad8\u901f\u4e14\u7a69\u5b9a\u7684\u7279\u6027\uff0c\u4f46 Cell \u9762\u7a4d\u8f03\u5927\uff0c\u5c0e\u81f4 \u55ae\u4f4d\u5bb9\u91cf\u6210\u672c\u504f\u9ad8<\/strong>\u3002<\/li>\n\n\n\n
        • DRAM<\/strong>
          <\/strong> \u4f7f\u7528 1T\uff0b\u96fb\u5bb9<\/strong> \u7684 Cell \u7d50\u69cb\uff0c\u53ef\u5be6\u73fe\u9ad8\u5bc6\u5ea6\uff0c\u4f46\u9700\u8981\u984d\u5916\u7684\u63a7\u5236\u96fb\u8def\u8207 Refresh \u6a5f\u5236\u3002<\/li>\n\n\n\n
        • PSRAM\uff08\u507d SRAM\uff09<\/strong>
          <\/strong> \u4f4d\u65bc SRAM \u8207 DRAM \u4e4b\u9593\uff0c\u900f\u904e\u63a1\u7528 DRAM Cell \u4e26\u63d0\u4f9b SRAM \u76f8\u5bb9\u4ecb\u9762<\/strong>\uff0c\u5728 \u6210\u672c\u3001\u6574\u5408\u5bc6\u5ea6\u8207\u8a2d\u8a08\u4fbf\u5229\u6027<\/strong> \u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002<\/li>\n<\/ul>\n\n\n\n

          \u56e0\u6b64\uff0cPSRAM \u7279\u5225\u9069\u5408 \u4e2d\u5bb9\u91cf\u7b49\u7d1a\u7684\u8a18\u61b6\u9ad4\u61c9\u7528<\/strong>\uff0c\u5c0d\u65bc\u540c\u6642\u53d7\u5230\u9762\u7a4d\u9650\u5236\u8207\u6210\u672c\u8981\u6c42\u7684\u7522\u54c1\u8a2d\u8a08\u800c\u8a00\uff0c\u662f\u4e00\u500b\u5be6\u7528\u7684\u9078\u9805\u3002<\/p>\n\n\n\n

          FeRAM \u662f\u5426\u80fd\u6210\u70ba PSRAM \u7684\u66ff\u4ee3\u65b9\u6848\uff1f\u2014 \u6280\u8853\u8207\u61c9\u7528\u5c64\u9762\u7684\u89c0\u5bdf<\/strong><\/h3>\n\n\n\n

          FeRAM\uff08\u9435\u96fb RAM\uff09<\/strong> \u662f\u4e00\u7a2e\u5728\u65b7\u96fb\u5f8c\u4ecd\u53ef\u4fdd\u5b58\u8cc7\u6599\u7684 \u975e\u63ee\u767c\u6027\u8a18\u61b6\u9ad4<\/strong>\uff0c\u8fd1\u5e74\u4f86\u88ab\u8996\u70ba SRAM \u8207 PSRAM \u7684\u6f5b\u5728\u66ff\u4ee3\u9078\u9805<\/strong>\u3002<\/p>\n\n\n\n

          \u90e8\u5206 FeRAM \u7522\u54c1\u63d0\u4f9b \u8207 SRAM \u76f8\u5bb9\u7684\u4ecb\u9762<\/strong>\uff0c\u4e14\u4e0d\u9700\u8981 Refresh\uff0c\u5373\u53ef\u5be6\u73fe \u6975\u4f4e\u5f85\u6a5f\u529f\u8017<\/strong> \u8207 \u9ad8\u901f\u5beb\u5165\u7279\u6027<\/strong>\u3002
          \u4e0d\u904e\uff0c\u7531\u65bc FeRAM \u7684 Cell \u7d50\u69cb\u8f03\u70ba\u7279\u6b8a\uff0c\u5728 \u5927\u5bb9\u91cf\u64f4\u5c55<\/strong> \u65b9\u9762\u4ecd\u5b58\u5728\u6280\u8853\u9650\u5236\uff0c\u4e14\u5beb\u5165\u6b21\u6578\u96d6\u7136\u6975\u9ad8\uff0c\u4f46\u4e26\u975e\u7406\u8ad6\u4e0a\u7684\u7121\u9650\u6b21\u3002<\/p>\n\n\n\n

          \u96a8\u8457\u8fd1\u5e74\u7684\u6280\u8853\u9032\u5c55\uff0cFeRAM \u7684\u5b58\u53d6\u901f\u5ea6\u5df2\u9010\u6f38\u63a5\u8fd1 SRAM\uff0c\u8207 PSRAM \u5728 \u9ad8\u901f\u6027\u8207\u4f4e\u529f\u8017\u7279\u6027<\/strong> \u4e0a\u6709\u4e0d\u5c11\u5171\u901a\u9ede\uff1b\u7136\u800c\uff0c\u5728\u6210\u672c\u5c64\u9762\uff0c\u4f5c\u70ba\u5168\u9762\u66ff\u4ee3\u65b9\u6848\u4ecd\u9700\u6eff\u8db3\u7279\u5b9a\u689d\u4ef6\u3002<\/p>\n\n\n\n

          \u56e0\u6b64\uff0c\u8f03\u70ba\u73fe\u5be6\u7684\u8a2d\u8a08\u65b9\u5f0f\uff0c\u662f\u6839\u64da\u61c9\u7528\u9700\u6c42\uff0c\u5c07 FeRAM \u4f5c\u70ba\u8f14\u52a9\u8a18\u61b6\u9ad4\u6216\u5feb\u53d6\u7528\u9014<\/strong>\uff0c\u8207 PSRAM \u642d\u914d\u4f7f\u7528\u3002<\/p>\n\n\n\n

          \u7e3d\u7d50<\/strong><\/h2>\n\n\n\n

          \u767c\u63ee PSRAM \u512a\u52e2\u7684\u6700\u4f73\u61c9\u7528\u60c5\u5883<\/strong><\/h3>\n\n\n\n

          \u507d SRAM\uff08PSRAM\uff09<\/strong> \u7d50\u5408\u4e86 DRAM Cell \u8207\u5167\u5efa Refresh \u96fb\u8def\uff0c\u5c0d\u5916\u5247\u80fd\u4ee5 SRAM \u76f8\u540c\u7684\u65b9\u5f0f\u5b58\u53d6<\/strong>\u3002
          \u76f8\u8f03\u65bc SRAM\uff0c\u5176 Cell \u5bc6\u5ea6\u66f4\u9ad8\u3001\u6210\u672c\u6548\u7387\u66f4\u4f73\uff0c\u540c\u6642\u53c8\u80fd\u907f\u514d\u8a2d\u8a08\u8005\u8655\u7406 Refresh \u63a7\u5236\u7684\u8907\u96dc\u6027\u3002<\/p>\n\n\n\n

          \u56e0\u6b64\uff0cPSRAM \u7279\u5225\u9069\u5408\u61c9\u7528\u65bc \u884c\u52d5\u88dd\u7f6e\u3001\u63a7\u5236\u7cfb\u7d71\u7b49<\/strong>\uff0c\u5728\u9700\u8981\u517c\u9867 \u4e00\u5b9a\u5b58\u53d6\u901f\u5ea6\u8207\u4e2d\u7b49\u5bb9\u91cf<\/strong>\uff0c\u4e14\u53d7\u9650\u65bc\u9762\u7a4d\u8207\u529f\u8017\u689d\u4ef6\u7684\u7522\u54c1\u8a2d\u8a08\u4e2d\u3002<\/p>\n\n\n\n

          \u672a\u4f86\u6280\u8853\u8da8\u52e2\u8207\u5e02\u5834\u5c55\u671b\uff082025\u20132032\uff09<\/strong><\/h3>\n\n\n\n

          \u672a\u4f86\u8a18\u61b6\u9ad4\u5e02\u5834\u4ecd\u5c07\u570d\u7e5e\u8457 \u9ad8\u901f\u3001\u4f4e\u529f\u8017\u8207\u9ad8\u6574\u5408\u5ea6<\/strong> \u9019\u4e09\u5927\u6838\u5fc3\u9700\u6c42\u767c\u5c55\uff0c\u800c PSRAM<\/strong> \u9810\u671f\u5c07\u4ee5\u300c\u4e2d\u5eb8\u4e14\u5be6\u7528\u7684\u9078\u64c7\u300d\u6301\u7e8c\u5b58\u5728\u3002<\/p>\n\n\n\n

          \u4e0d\u904e\uff0c\u96a8\u8457 FeRAM \u7b49\u975e\u63ee\u767c\u6027\u8a18\u61b6\u9ad4<\/strong> \u7684\u666e\u53ca\uff0c\u4ee5\u53ca\u4f4e\u529f\u8017 DRAM \u6280\u8853\u7684\u9032\u6b65\uff0cPSRAM \u7684\u61c9\u7528\u7bc4\u570d\u53ef\u80fd\u6703\u9010\u6b65\u671d\u5411\u66f4\u660e\u78ba\u7684\u5229\u57fa\u5e02\u5834\u91cd\u65b0\u5b9a\u7fa9\u3002<\/p>\n\n\n\n

          \u5728 Edge AI \u8207\u6b21\u4e16\u4ee3\u611f\u6e2c\u5668<\/strong> \u9818\u57df\u4e2d\uff0c\u4f9d\u7528\u9014\u6700\u4f73\u5316\u7684\u8a18\u61b6\u9ad4\u67b6\u69cb\u5c07\u6210\u70ba\u4e3b\u6d41\uff0c\u800c PSRAM \u5728 \u8a2d\u8a08\u7c21\u6613\u6027\u8207\u5bb9\u91cf\u5e73\u8861<\/strong> \u4e0a\uff0c\u4ecd\u5c07\u4f54\u6709\u4e00\u5e2d\u4e4b\u5730\u3002<\/p>\n\n\n\n

          \u7d66\u8a2d\u8a08\u5de5\u7a0b\u5e2b\u7684\u4e0b\u4e00\u6b65\u5efa\u8b70\u8207\u53c3\u8003\u8cc7\u6e90<\/strong><\/h3>\n\n\n\n

          \u5728\u7cfb\u7d71\u8a2d\u8a08\u968e\u6bb5\uff0c\u5efa\u8b70\u5de5\u7a0b\u5e2b\u91dd\u5c0d SRAM\u3001DRAM\u3001PSRAM \u8207 FeRAM<\/strong> \u7b49\u8a18\u61b6\u9ad4\u6280\u8853\uff0c\u5f9e Cell \u7d50\u69cb\u3001\u529f\u8017\u7279\u6027\u3001\u5b58\u53d6\u6548\u80fd\u8207\u4f9b\u61c9\u7a69\u5b9a\u6027<\/strong> \u7b49\u9762\u5411\u9032\u884c\u6bd4\u8f03\u8a55\u4f30\u3002<\/p>\n\n\n\n

          \u6b64\u5916\uff0c\u900f\u904e\u67e5\u95b1 PSRAM \u7684 Datasheet \u8207 Application Note<\/strong>\u3001\u8490\u96c6\u6700\u65b0\u7684\u975e\u63ee\u767c\u6027\u8a18\u61b6\u9ad4\u6280\u8853\u5831\u544a\uff0c\u4e5f\u6709\u52a9\u65bc\u5be6\u969b\u8a2d\u8a08\u6c7a\u7b56\u3002
          \u7279\u5225\u662f FeRAM \u5728 \u9ad8\u901f\u5beb\u5165\u8207\u9ad8\u8010\u4e45\u6027<\/strong> \u65b9\u9762\u7684\u7279\u6027\uff0c\u5c0d\u7406\u89e3\u5176\u8207 PSRAM \u7684\u529f\u80fd\u5dee\u7570\u5177\u6709\u91cd\u8981\u53c3\u8003\u50f9\u503c\u3002<\/p>\n","protected":false},"featured_media":5925,"template":"","column_category":[275],"class_list":["post-5937","column","type-column","status-publish","has-post-thumbnail","hentry","column_category-others"],"acf":[],"yoast_head":"\nPSRAM (\u507dSRAM) \u662f\u4ec0\u9ebc\uff1f\u8207SRAM \u7684\u5dee\u7570\u3001\u8a2d\u8a08\u512a\u52e2\u53ca FeRAM \u66ff\u4ee3\u65b9\u6848\u89e3\u6790<\/title>\n<meta name=\"description\" content=\"\u89e3\u6790PSRAM (Pseudo SRAM) \u7684\u6280\u8853\u7279\u6027\uff01\u672c\u6587\u91dd\u5c0d\u8a2d\u8a08\u5de5\u7a0b\u5e2b\u8aaa\u660e PSRAM \u5982\u4f55\u7d50\u5408 DRAM \u5bc6\u5ea6\u8207 SRAM \u4ecb\u9762\u512a\u9ede\uff0c\u4e26\u8a73\u7d30\u5c0d\u6bd4\u5176\u8207 SRAM \u5728\u529f\u8017\u3001\u901f\u5ea6\u53ca\u6210\u672c\u4e0a\u7684\u53d6\u6368\u3002\u7279\u5225\u6536\u9304 FeRAM \u66ff\u4ee3\u53ef\u80fd\u6027\u7684\u6df1\u5ea6\u6280\u8853\u8a55\u4f30\uff0c\u9069\u5408 IoT \u8207\u5d4c\u5165\u5f0f\u7cfb\u7d71\u958b\u767c\u53c3\u8003\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ramxeed.com\/zh-tw\/tech-column\/psram-guide-for-design-engineers\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PSRAM (\u507dSRAM) \u662f\u4ec0\u9ebc\uff1f\u8207SRAM \u7684\u5dee\u7570\u3001\u8a2d\u8a08\u512a\u52e2\u53ca FeRAM \u66ff\u4ee3\u65b9\u6848\u89e3\u6790\" \/>\n<meta property=\"og:description\" content=\"\u89e3\u6790PSRAM (Pseudo SRAM) \u7684\u6280\u8853\u7279\u6027\uff01\u672c\u6587\u91dd\u5c0d\u8a2d\u8a08\u5de5\u7a0b\u5e2b\u8aaa\u660e PSRAM \u5982\u4f55\u7d50\u5408 DRAM \u5bc6\u5ea6\u8207 SRAM \u4ecb\u9762\u512a\u9ede\uff0c\u4e26\u8a73\u7d30\u5c0d\u6bd4\u5176\u8207 SRAM \u5728\u529f\u8017\u3001\u901f\u5ea6\u53ca\u6210\u672c\u4e0a\u7684\u53d6\u6368\u3002\u7279\u5225\u6536\u9304 FeRAM \u66ff\u4ee3\u53ef\u80fd\u6027\u7684\u6df1\u5ea6\u6280\u8853\u8a55\u4f30\uff0c\u9069\u5408 IoT \u8207\u5d4c\u5165\u5f0f\u7cfb\u7d71\u958b\u767c\u53c3\u8003\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ramxeed.com\/zh-tw\/tech-column\/psram-guide-for-design-engineers\/\" \/>\n<meta property=\"og:site_name\" content=\"RAMXEED\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ramxeed.com\/zh-tw\/cms\/wp-content\/uploads\/2026\/01\/066-pixta_70234828_S.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"426\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u9810\u4f30\u95b1\u8b80\u6642\u9593\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 \u5206\u9418\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ramxeed.com\/zh-tw\/tech-column\/psram-guide-for-design-engineers\/\",\"url\":\"https:\/\/www.ramxeed.com\/zh-tw\/tech-column\/psram-guide-for-design-engineers\/\",\"name\":\"PSRAM (\u507dSRAM) \u662f\u4ec0\u9ebc\uff1f\u8207SRAM \u7684\u5dee\u7570\u3001\u8a2d\u8a08\u512a\u52e2\u53ca FeRAM 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